Build (method = -2) #dp: 1621 Step-3' Graph: 69 vertices and 206 arcs (0.01s) Step-4' Graph: 28 vertices and 125 arcs (0.01s) #V4/#V3 = 0.41 #A4/#A3 = 0.61 Ready! (0.01s) Optimize a model with 38 rows, 126 columns and 325 nonzeros Presolve removed 8 rows and 13 columns Presolve time: 0.00s Presolved: 30 rows, 113 columns, 300 nonzeros Variable types: 0 continuous, 113 integer (0 binary) Found heuristic solution: objective 99.0000000 Found heuristic solution: objective 89.0000000 Optimize a model with 30 rows, 113 columns and 300 nonzeros Presolved: 30 rows, 113 columns, 300 nonzeros Root barrier log... Ordering time: 0.00s Barrier statistics: AA' NZ : 1.480e+02 Factor NZ : 3.530e+02 Factor Ops : 5.087e+03 (less than 1 second per iteration) Threads : 1 Objective Residual Iter Primal Dual Primal Dual Compl Time 0 6.14174655e+02 -2.34002775e+03 7.13e+02 1.11e-16 4.99e+01 0s 1 1.75212278e+02 -9.35213558e+02 8.03e+01 6.66e-16 8.04e+00 0s 2 7.49064423e+01 -1.58458729e+02 1.74e+00 1.67e-15 1.02e+00 0s 3 3.05783771e+01 -1.23761224e+01 6.52e-02 5.27e-16 1.83e-01 0s 4 1.95892544e+01 6.79877225e+00 1.74e-02 3.02e-16 5.45e-02 0s 5 1.76323691e+01 1.14845539e+01 5.60e-03 3.52e-16 2.62e-02 0s 6 1.68539248e+01 1.60283410e+01 1.29e-05 2.43e-16 3.51e-03 0s 7 1.66690912e+01 1.66495427e+01 2.46e-07 4.44e-16 8.32e-05 0s 8 1.66666691e+01 1.66666495e+01 8.18e-15 3.33e-16 8.32e-08 0s 9 1.66666667e+01 1.66666667e+01 1.12e-14 2.31e-16 8.39e-14 0s Barrier solved model in 9 iterations and 0.00 seconds Optimal objective 1.66666667e+01 Root relaxation: objective 1.666667e+01, 74 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 16.66667 0 11 89.00000 16.66667 81.3% - 0s H 0 0 17.0000000 16.66667 1.96% - 0s Explored 0 nodes (106 simplex iterations) in 0.01 seconds Thread count was 1 (of 8 available processors) Optimal solution found (tolerance 0.00e+00) Best objective 1.700000000000e+01, best bound 1.700000000000e+01, gap 0.0% Preprocessing time: 0.01 seconds Gurobi run time: 0.01 seconds Total run time: 0.02 seconds Objective: 17 Solution: 2 x [1, 2, 3, 4, 5, 10] 8 x [1, 3, 4, 5, 7, 8] 4 x [4, 5, 6, 7, 8, 8] 1 x [5, 5, 6, 7, 9] 1 x [3, 3, 4, 10, 10] 1 x [3, 3, 4, 10, 10, 10]